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#!/bin/bash
if test $# -lt 1; then
cat >> /dev/stderr <<EOF
Usage:
$0 <summarydir> [ <rutdir> [ <earliest_commit> ] ]
Iterate through [<earliest_commit>..HEAD] dumping minimal JSON on
each.
EOF
exit 1
fi
bindir=$(cd $(dirname $0) && pwd)
summarydir=$(realpath $1) ; shift
rutdir=$(realpath $1) ; shift
earliest_commit=$1 ; shift
# HEAD may not be latest commit; figure out what it is
branch=$(${bindir}/gime-git-branch.sh ${rutdir}) # main master ...
remote=$(git -C ${rutdir} config --get branch.${branch}.remote) # origin/ libreswan/ ...
latest_commit=${remote}/${branch}
rank=0
{
# start at latest; stop at one commit previous to commit after
# earliest_commit, i.e., earliest_commit
#
# Dump both the author's and the committer's dates; the author's
# date is used when showing the commit and the committer's date is
# used when working out where to plot the commit on the progress
# graph. When an old commit is cherry-picked or merged, the two
# can differ wildly.
#
# Also include the rank numbered in descending order.
git -C ${rutdir} log \
--format='%H,%h,%(decorate:prefix=,suffix=,separator= ,pointer=>,tag=tag:),%P,%aI,%cI,%s' \
${latest_commit} ^${earliest_commit}^
} | {
while IFS=, read hash abbrev_hash tags parents author_date committer_date subject ; do
printf '{'
printf ' '
printf '"hash": "%s"' "${hash}"
printf ', '
printf '"abbrev_hash": "%s"' "${abbrev_hash}"
printf ', '
printf '"author_date": "%s"' "${author_date}"
printf ', '
printf '"committer_date": "%s"' "${committer_date}"
printf ', '
printf '"tags": "%s"' "${tags}"
printf ', '
printf '"rank": %d' "${rank}" # yes, integer!
printf ', '
printf '"parents": ['
fs=' '
for parent in ${parents} ; do
printf '%s"%s"' "${fs}" "${parent}"
fs=', '
done
printf ' ]'
printf ', '
printf ' "subject": "%s"' "$(echo ${subject} | sed -e 's;";\\";g')"
printf ' '
printf '}\n'
rank=$((rank + 1))
done
}
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